238 GLOSSARY. 



O men/ turn : a fold of the peritoneum connecting the abdominal viscera. 



Olfac'tory (olfacere, to smell) : pertaining to the nose. 



Oph thai' mic (ophthalmos, eye) : pertaining to the eye. 



Op' tic (optikos, to see) : relating to the eye. 



O' ra : mouth. 



Or' bit al (orbis, circle) : pertaining to the cavity for the eye. 



Or' gan : any part having a definite function. 



Or nith o del' phi a (ornis, bird; delphus, womb): the oviparous 



mammals. 

 Os: bone. 



O' va : plural of ovum. 

 O va' le : oval. 

 O vip' a rous (ovum, egg; parere, to bring forth) : those animals which 



deposit eggs instead of bringing forth living young. 

 O' vum : egg. 



Pa ri' e tal (paries, a wall). 



Par ot' id (para, near ; ous, ear) : the name of a salivary gland. 



Pec' to ral (pectus, breast) : pertaining to structures in the region of 

 the breast. 



Ped' i cles (pediculus, a little foot) : the foot of the neural arch. 



Pe' dun cles (pedunculus, a little foot) : bands of fibers uniting certain 

 parts of the brain. 



Pel' vie : relating to the cavity between the innominate bones. 



Perimys'ium (peri, around; mus, a muscle): the tissue which en- 

 velops the primary bundles of muscle fibers. 



Per is so dac' ty la (perissos, odd ; dactyl, finger) : those ungulates 

 having an odd number of digits. 



Pe riph' e ral : pertaining to the outside. 



Peritone'um (peri, around; teinein, to stretch): the serous mem- 

 brane lining the abdominal cavity and surrounding most of the 

 organs within it. 



Per o ne' al (perone, a pin) : relating to the fibula. 



Pe' des : plural of pes. 



Pes: foot. 



Pha Ian' ges : plural of phalanx. 



Phal' anx : one of the bones of the fingers or toes. 



Phar' ynx (throat) : the cavity back of the mouth. 



Phren' ic (phren, diaphragm) : pertaining to the diaphragm. 



Phy log' e ny (phula, tribe; genas, producing) : that science treating of 

 the evolution of a group. 



Pi' a ma' ter (soft mother) : the delicate membrane next to the brain 

 and cord. 



Pneu mo gas' trie (pneuma, air; gaster, stomach) : the vagus nerve. 



Pons : bridge. 



